DEV: add linting to ci

Author: rmcar17

.github/workflows/ci.yml

@@ -121,4 +121,33 @@ jobs:
         run: |
             pip install nox
             nox -s type_check-${{ matrix.python-version }}
-      
+
+  lint:
+    name: "Linting"
+    needs: build-iqtree
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        python-version: ["3.12"]
+        os: [ubuntu-latest]
+
+    steps:
+      - uses: "actions/checkout@v4"
+        with:
+          fetch-depth: 0
+
+      - uses: "actions/setup-python@v5"
+        with:
+            python-version: "${{ matrix.python-version }}"          
+
+      - uses: actions/cache/restore@v4
+        with:
+            key: libiqtree-${{ matrix.os }}-${{ env.IQ_TREE_2_SHA }}
+            path: src/piqtree2/_libiqtree/libiqtree2.a
+            fail-on-cache-miss: true
+      
+      - name: "Run Type Checking for ${{ matrix.python-version }}" 
+        run: |
+            pip install nox
+            nox -s ruff-${{ matrix.python-version }}